Ch 6 Pretest

Ch 6 Pretest - Intermediate Algebra Name Pretest Ch 2—6...

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Unformatted text preview: Intermediate Algebra Name Pretest Ch 2—6 Pretest must be completed in order to take the exam. The pretest will be graded. You may ask for help from your instructor, peers, tutors, or even the Academic Support Center. For full credit, all work must be shown neatly on separate paper, including checks where specified. Solve the equation. CHECK YOUR ANSWER 1)6(3x—7)—3(x+8)=6x—202+x V 1) Solve. 2)7s+4p=tp—4forp 2) Solve the problem. CHECK YOUR ANSWER 3) Find the measure of each angle. 3) 4"“ (5x + 33)° A ‘ 4) Raymond plans on playing 5 rounds of golf while on vacation. He wants his average to be 4) 90 or less. His scores for the first 4 rounds were 87, 91, 91, and 89. What does he need to score on the last round to meet his goal? Answer the question. 5) If k < 0, what is the solution set of | 6f - 1 | = k 5) Decide whether the pair of lines is parallel, perpendicular, or neither. 6)2x+3y=—2and2y=3x+11 6) Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so. 7)y=-:-x 7) 3x — 2y = 1 Simplify. Write the answer with only positive exponents. Assume that all variables represent nonzero real numbers. 9x2 3 15x2 '2 Sly—3] [w] . 8P“— Write the number in standard form. 9) 1.24 x 104 9) For the given pair of functions, find the requested function. 10) f(x) = x2 - 7 and g(x) = 3x + 4; (f — g)(4). 10) 11) f(x) = 4x2 — 5x ~ 5 and g(x) = x .- 1; (1 o g)(x). Perform the indicated operations. 12) (8k3+4k2—-k+10)-(4k3—3k2—k~1)+(31<3+41<2-k+1) 13) (5m - 6)(—8m2 + m + 9) 14)2x3—5x2—10x-6+x—4 For the given pair of functions, find the requested function. 15) f(x) = x7— + 12x + 35, g(x) = x + 5 Find [—3-](x). Factor. CHECK YOUR ANSWER BY MULTIPLYING 16) 922 - 362 17) 9k2 — 49j2 18) 4x+ay+ax+4y 19) —2x2 — x + 36 20) 36a?- +V24ab + 4162 21) a3 + 4a2 — ab2 ~ 4b2 22) y3 — 125 Provide an appropriate response. 23) Explain why (x2 + 7y)p + 3(x2 + 7y) is not in factored form. Then factor the polynomial. Solve the equation. USE ZERO PRODUCT PROPERTY. 24) 3x2 + 25x = —28 Solve the equation. 25) 2x2 — 8x = o BONUS: Solve the problem. 26) A ball is projected upward from ground level. After t seconds, its height in feet is a function defined by f(t) = —16t2 + 48t. After how many seconds will it reach a height of 32 ft? 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) Answer Key Testname: PRETEST CH 2—6 1) {-17} 2”): —7s-4 mp: 7s+4 4-—t t—4 3) 21°,21°,138° 4) 920r1ess 5)(Z§ 6) Perpendicular 5 2 8) 81x 25y13 9) 0.000124 10) -7 11) 4x2 — 13x + 4 12) 7k3 + 11k2 - k + 12 13) —40m3 + 53m2 + 39m — 54 2 2 14)2x +3x~1~2+x_4 15) x + 7 16) 9z(z — 4) 17) (3k — 7j)(3k + 7j) 18) (x + y)(4 + a) 19) —(2x + 9)(x — 4) 20) (6.3 + 2b)2 21) (a + bxa - bxa + 4) 22) (y — 5)(y2 + By + 25) 23) It is not in factored form because there are two terms. The common factor is (x2 + 7y). Factored form: (x2 + 7y)(p + 3) 4 24) {—7, — 5-} 25) {0, 4} 26) 1 sec and 2 sec ...
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This note was uploaded on 04/18/2008 for the course MTH 10001 taught by Professor Fdf during the Spring '07 term at FIT.

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Ch 6 Pretest - Intermediate Algebra Name Pretest Ch 2—6...

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